Granted Patent
Utility
US 4,433,050 · App. 06/300,644
Direct positive type light sensitive silver halide photographic material
Inventors:
Takao Abe, Satoru Hohnishi
Patented Case
View Patent ↗
Granted: Feb 21, 1984
Filed: Sep 9, 1981
Inventors
Takao Abe
Satoru Hohnishi
Assignee (at issue)
Konishiroku Photo Industry Co., Ltd.
This patent predates the USPTO's electronic file wrapper — prosecution documents from this era exist only in the Patent Office's paper records. A certified copy of the file history can be ordered from the USPTO's paper archives.